Hearts of Iron IV is a grand strategy game released in 2016 by Paradox Interactive, in which players lead a nation through the Second World War and react to unfolding events, decisions and headlines. Its interface sounds, including the alert for a new news item, became familiar to a large audience through gameplay videos, livestreams and strategy memes. Editors later lifted the pop-up cue out of gameplay because it reads instantly as official news, even outside the game, and it remains useful for parody broadcasts, update videos and historical jokes.